- A25
- B20
- C18
- D22.5
Step-by-Step Solution
72 km/h = 20 m/s; total distance = 200+250 = 450 m; time = 450/20 = 22.5 seconds.
Answer: D) 22.5
A train 200 m long running at 72 km/h crosses a platform 250 m long. How many seconds does it take?
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